Thuchan, I have both platters too but I ended up using the original felt platter. The glass platter seems more detailed, I don't think that it really is though but its also somewhat harder sounding than the felt platter. Initially I thought that the felt platter was wooly compared to the glass one but then I realized that its musically more homogenous so I went back to it. Of course the choice is a matter of the reproduction chain and personal preference.
Do you mind if I ask what you have for the rest of your system?
Do you mind if I ask what you have for the rest of your system?